Lubricating apparatus



Aug. 7, 1928. 1,679,732

\ H. J. MURPHY LUBRICATI NG APPARATUS Filed March 14, 1922 Irv/vena aHowa Pd JMu/'pzg.

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Patented Aug. l 7, 192,8. i

UNITED STATES 1,679,132 PATENT' OFFICE.-

HOWARD J. MURPHY, or READING, MASSACHUSETTS, ASSIGNOR, mi MESNE ASSIGN-MENTS, TO THE BASSICII MANUFACTURING COMPANY, 'on CHICAGO, ILLINOIS, lA

CORPORATION or DELAWARE.

LUBRICATING APPARATUS.

Application led March 14,1922. Serial No. 543,650.

This invention pertains to yimprovements in lubricating apparatus.

-It is among the ob]ects of the invention to :provide lubricatingapparatus In whlch a source of lubricant under pressure may be the valvebeing locked Closed; i

Fig. 4 is a section on thel line 3-3 of Fig.

2, showing the parts in unc/oupled` relation,

2, showing the parts in coupled relation', the

u valve being opened and the parts locked against uncoupling; Fig. 5 isan end operating ring; p i

Fig. 6 includes a side andy end elevationof the coupling nozzle;

elevation of the valvethe interior coupling sleeve; l

Fig. 8 includes a side and end elevation of the sealing part,whichpreferably acts also as a valve pa Fig. 9 is an lnd elevation of acooperating valve part;

Fig. 10 1s a Fin. 7; and

Fig. 11 is'a section on the` line 10-10 of the parts shown 1n Fig. 3. fReferring to the drawings and to the referred form of my' inventionillustrate Iv have shown a lubricant-expelling device typified bythebarrel 12 having the usual rear head 13 into which is threaded the usualplunger-carrying stem 14. v

The discharge end of the device or gun 1s provided with a couplingincluding-a nozzle part 1.5 adapted to be readily coupled to and yuncoupled from a lubricant-receiving `nipple 16 which may be of the typeillustrated permit coupling of the. parts.

Fig. 3 is a section on the line 3-3 of Fig.

Fig. 7 'includes a side and end elevation of,`

longitudinal section illustrating the relative positions longitudinallyo r in my co-pending application Serial No.

543,643, led herewith March 14, 1922. In the preferred form -of couplingillustrated, the nozzle 15 is provided with an end opening 17 (Fig. 6)ada ted to admit the' end of the nipple16 inc uding the projections 18thereon, and to' provide lflanges 19 adapted to underlie saidprojections when the nozzle 15 is turned relative to the nipple 16.lVithinthe nozzle 15, I have provided a sleeve -20 (Figs. 2 and 7)presenting an vopening 21 shaped similarly to the opening 17 inthe'nozzle 15, and positioned to lie against the sides of theprojections 18 of the' nipple 16. The sleeve 20 may turna limited extentrelative to the nozzle- 15 to In the preferred form of my inventionillustrated, I

- have provided valve mechanism controlling discharge of lubricant tothe nipple 16 and have coordinated the coupling andk valve operatingmechanism to preclude openin of the valve until coupling is completed analso preferably, as illustrated, to lpreclude uncoupling until theclosing of the valve is effected. To thisI end, the sealing part 22,

presenting lubricant passages or ports 30, 31

abl mounted in part withinv the sleeve 20 an a valve part 32 presentingportsl33,'34 is provided to cooperate with the ports 30, 31. InV theform ofmy invention illustrated, the valve opening movement is actuatedby turning a ring 35 connected by a Screw 36 to. the Sealing ,part 22,and clutchy means is provided `opposing turning of the ring 35 to openthe valve until the nozzle 15 land carrying the sealing washer 23, isrotat- I and sleeve 20 are in the relative position in which thecoupling is completed. When the ring 35 iS turned to such position as toopen the valve, clutch means also preclude turn in of the sleeve 20relative tothe nozzle to e ect uncoupling until after the ring 35 isturned to valve closing position. u

Assuming the parts tojbe in coupled relation and the valve open, asshown in Fig.

2, the ring 35, hozzle 15Sleeve 22 and-sea ing part 20 will occupy Itherelative position shown inl Fig. 4, relative rotatiOnbe-` tween thesleeve 20 andA nozzle` 15 being precluded by clutch means, herein takingthe form of a ball 40 enteredv in a hole 41- in the nozzle 15 andpressed into a depres-` nipple into the nozzle.

16. The uncoupling movement will bring' the parts to the position shownin Figs. 3 and 11, in which the ball 40 is heldy by the outside wall ofthe sleeve 2O in position precluding opening of the valve by turning ofthe ring 35 relative to the nozzle 15 until coupling is again effected.rllhis interlock is best shown in Fig. 3. The slot 5() in the sleeve 22which cooperates with the nozzlecarried pin 51 to limit rotation betweennozzle and sleeve 20 appears as viewed in Fig. ,3 to interfere with thelast-described interlock, but does not do so because out of line withthe hole 41 as shown in Fig. 11.

The use of the apparatus described is simple; the nozzle beingintroduced over the cylindrical portion 60 of the nipple 16 is turneduntil the projections 18 of thev nipple permit the desired entrance ofthe The apertures of the nozzle 15 and the sleeve 2() are now aligned topermit entrance of ythe nipple. When entered, a slight turn of thebarrel of the gun causes the nozzle to turn therewith while the sleeve20 remains stationary with the nipple. When the pin 51 reaches the endof slot 50, coupling is completed and the clutch means is in position sothat the ring may be turned4 to open the valve by turning the sealingpart 22 without corresponding turning of the valve part 32 which is heldagainst rotation by a projection (Fig. 9) entering a hole 71 in .thenozzle (Fig. 6), the valve part preferably ressed toward` its' seat bythe spring 72.

ubricant passing through the ports 30, 31, 33, 34 will now pass to thelubricantreceiving nipple, incidentally getting be.-

i hind thesealing 'washer 23 and pressing this tightly against the faceofV the nipple 16 surrounding; the lubricant-receiving aperture therei:Should the operator carelesslytry to uncuple without first closingv thevalve he cannot do so because of the interlockbetween the coupling partsshown in Fig. 4. PursuantA to closing of the valve, uncoupling may beeffected by counterclockwise turning of the vbarrel of the gun.

Should the operator carelessly try to open the valve kwhile thus'uncoupled, he cannotv do so because of the interlock shown in Figs. 3Iand 11. Leakage between the sealing part 22 and the nozzle is precludedby Athe pressure of the lubricant and lspring72 pressing the taperliange against-its seat.

While I have shown and described a preferred. form of one embodiment ofmy invention, it will be understood that changes involving omission,substitution, alteration and reversal of parts, and even changes inthe-mode of operation, may be made without departing from. the scope ofmy invention, which is best dened in the following claims.

I claim:

1. Lubricating apparatus of the class described includmg alubricant-delivering compressor having at its discharge end a quickdetachable coupling for connection by movement of said compressorrelative to a lubricant-receiving element, said coupling providing arotary valve, and clutch means positively opposin opening of said valveuntil completion o the coupling operation, said valve operableby amanipulative operation separate andI distinct from the couplingoperation. f

2. A lubricating apparatus including a lubricant-delivering compressorhaving at its discharge end a coupling for connection by movement .ofsaid compressor relative to a lubricant-receiving element, said couplingproviding a valve, a sealing part, and clutch means opposing opening ofsaid valve until completion of the coupling operation and opposinguncoupling of said delivering compressorfrom said receiving elementuntll completion of the valve-closing operation, said valve operable bya manipulative operat-ion separate and distinct from the couplingoperation, whereby said sealing part is turned relative to the couplingto open said valve.

3.v Lubricating apparatus comprising a barrel, a lubricant-expellingplunger there-y in, a discharge nozzle having a coupling and a v rotaryvalve associated therewith,

said coupling operable by turning ofthe grease gun barrel relative to alubricantreceiving nipple introduced in said noz'lzle and said valveoperable by an independent manual turning movement of an associated partcoaxial with the coupling.v

4. Lubricating apparatus com rising a lubricant-expelling device incluing a' disv charge nozzle having a terminal portion with anges toengage'beneath lateral projections on a lubricant receiving element whenthe lubricant-receiving element is entered in said terminal portion landone is turned relative to the other, a erforated art within said nozzlefor delivering lubricant to the lubricant-receiving element, and asecond perforated art having lindependent handle means, sai perforatedparts cooperating therewith to rovide a rotary disc valve controllingdlscharge of Alubricant from 'said nozzle independent of thelubricant-receiving element.

In testimony whereof,"I havel signed my name to' this s ecifcation. 1OWARD J. MURPHY.

